Check the listing for details. Rubber Stoppers, Size 000, Solid, Karter Scientific 216I1 (Pack 170). Condition: New. Listed at 16.99 USD. Rubber Stoppers, Size 000, 1 Pound Bag (Case 170) Product Description: Size 000, Fits 12mm Glass or Plastic Tubes. Excellent grade rubber. Do not use with food or drink! Low sulfur content, and has long lasting Numbers molded into the top. Product Features: Excellent grade rubber Do not use with food or drink Low sulfur content Long lasting numbers molded into top Shipping Policy: Our standard policy is to ship out all orders the same day if payment is received before 5:00 PM CST Return Policy: Returns Accepted After receiving the item, if you wish to return it please contact us within 14 Days When we receive your return item your refund will be your money back. The buyer is responsible for return shipping. We do not charge a restocking fee. If you have any questions, please email us